A Randomized, Double-blind, Placebo-controlled Study on Immunogenicity and Safety of MVA-BN (IMVAMUNE™) Smallpox Vaccine in Healthy Subjects

NCT ID: NCT00316524

Last Updated: 2019-03-06

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE2
• Total Enrollment: 745 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2006-04-30
• Study Completion Date: 2007-08-31

Brief Summary

The primary objective of this study is to evaluate the immune response after a single vaccination of pre-immune subjects compared to two vaccinations in naive subjects.

In addition the study further investigates the cardiac safety profile of MVA-BN® in a healthy population compared to placebo.

Detailed Description

The study consists of 4 groups, which receive either MVA-BN once, MVA-BN two times, MVA-BN followed by placebo, or two administrations of placebo.

Conditions

Smallpox

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: PREVENTION
• Blinding Strategy: QUADRUPLE

Study Groups

GP 1: two x 1x10E08 TCID, MVA-BN® s.c., vaccinia naive

vaccinia naive subjects receiving two subcutanenous vaccinations with 0.5ml MVA-BN® IMVAMUNE (1x10E08 TCID)

Group Type: EXPERIMENTAL

MVA-BN® (IMVAMUNE)

Intervention Type: BIOLOGICAL

1x 10E8\_TCID50

GP 2: 1x10E08 TCID, MVA-BN®, 1x Placebo, s.c., vaccinia naive

vaccinica naive subjects receiving one vaccination with 0.5ml MVA-BN® IMVAMUNE(1x10E08 TCID), followed by one vaccination Placebo (0.5ml Tris Buffer)

Group Type: EXPERIMENTAL

MVA-BN® (IMVAMUNE)

Intervention Type: BIOLOGICAL

1x 10E8\_TCID50

Placebo

Intervention Type: BIOLOGICAL

Tris-Buffer

GP 3: two x Placebo, s.c., vaccinia naive

vaccinia naive subjects, receiving two subcutaneous vaccinations with Placebo (0.5ml Tris Buffer).

Group Type: PLACEBO_COMPARATOR

Placebo

Intervention Type: BIOLOGICAL

Tris-Buffer

GP 4: 1x10E08 TCID, MVA-BN®, s.c., vaccinia experienced

vaccinia experienced subjects, receiving one subcutaneous vaccination with 0.5ml MVA-BN® IMVAMUNE (1x10E08 TCID).

Group Type: EXPERIMENTAL

MVA-BN® (IMVAMUNE)

Intervention Type: BIOLOGICAL

1x 10E8\_TCID50

Interventions

MVA-BN® (IMVAMUNE)

1x 10E8\_TCID50

Intervention Type: BIOLOGICAL

Placebo

Tris-Buffer

Intervention Type: BIOLOGICAL

Eligibility Criteria

Inclusion Criteria

1. Male and female subjects between 18 and 55 years of age.

2. Women must have a negative serum pregnancy test at screening and a negative urine or serum pregnancy test within 24 hours prior to vaccination.

3. Women of childbearing potential must have used an acceptable method of contraception for 30 days prior to the first vaccination, must agree to use an acceptable method of contraception during the study, and must not become pregnant for at least 28 days after the last vaccination. A woman is considered of childbearing potential unless post-menopausal or surgically sterilized. (Acceptable contraception methods are restricted to abstinence, barrier contraceptives, intrauterine contraceptive devices or licensed hormonal products.)

4. Lab values without clinically significant findings

5. Electrocardiogram (ECG) without abnormal findings (e.g. any kind of atrioventricular or intraventricular conditions or blocks such as complete left or right bundle branch block, AV-node block, QTc or PR prolongation, premature atrial contractions or other atrial arrhythmia, sustained ventricular arrhythmia, 2 premature ventricular contractions (PVC) in a row, ST elevation consistent with ischemia).

Groups 1, 2 and 3 (All vaccinia-naïve subjects) additionally:

1. No history of known or suspected previous smallpox vaccination.

2. No detectable vaccinia scar.

Group 4 (All previously vaccinated subjects) additionally:

1. History of previous smallpox vaccination (documented and/or typical vaccinia scar).

2. Most recent smallpox vaccination ≥ 5 years.

Exclusion Criteria

1. Uncontrolled serious infection i.e. not responding to antimicrobial therapy.

2. History of or active autoimmune disease. Persons with vitiligo or thyroid disease taking thyroid replacement are not excluded.

3. Known or suspected impairment of immunologic function including, but not limited to, clinically significant liver disease; diabetes mellitus; moderate to severe kidney impairment.

4. History of malignancy, other than squamous cell or basal cell skin cancer, unless there has been surgical excision that is considered to have achieved cure. Subjects with history of skin cancer at the vaccination site are excluded.

5. History of coronary heart disease, myocardial infarction, angina, congestive heart failure, cardiomyopathy, stroke or transient ischemic attack, uncontrolled high blood pressure, or any other heart condition under the care of a doctor.

6. History of an immediate family member (father, mother, brother, or sister) who died due to ischemic heart disease before age 50 years.

7. Ten percent or greater risk of developing a myocardial infarction or coronary death within the next 10 years using the National Cholesterol Education Program's risk assessment tool. (http://hin.nhlbi.nih.gov/atpiii/calculator.asp?usertype=prof) NOTE: This criterion applies only to volunteers 20 years of age and older.

8. History of anaphylaxis or severe allergic reaction.

9. Immune modulatory therapy.

10. History of any serious medical condition, which in the opinion of the investigator would compromise the safety of the subject.

11. History or clinical manifestation of clinically significant and severe hematological, renal, hepatic, pulmonary, central nervous, cardiovascular or gastrointestinal disorders.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 55 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

National Institute of Allergy and Infectious Diseases (NIAID)

NIH

Sponsor Role: collaborator

Bavarian Nordic

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Frank von Sonnenburg, Prof

Role: PRINCIPAL_INVESTIGATOR

Section of International Medicine & Public Health, Department of Infectious Diseases and Tropical Medicine, Ludwig-Maximilians Unviersity Munich

Locations

Harrison Clinical Research GmbH

Munich, Bavaria, Germany

Countries

Germany

References

Zitzmann-Roth EM, von Sonnenburg F, de la Motte S, Arndtz-Wiedemann N, von Krempelhuber A, Uebler N, Vollmar J, Virgin G, Chaplin P. Cardiac safety of Modified Vaccinia Ankara for vaccination against smallpox in a young, healthy study population. PLoS One. 2015 Apr 16;10(4):e0122653. doi: 10.1371/journal.pone.0122653. eCollection 2015.

Reference Type: RESULT

PMID: 25879867 (View on PubMed)

Ilchmann H, Samy N, Reichhardt D, Schmidt D, Powell JD, Meyer TPH, Silbernagl G, Nichols R, Weidenthaler H, De Moerlooze L, Chen L, Chaplin P. One- and Two-Dose Vaccinations With Modified Vaccinia Ankara-Bavarian Nordic Induce Durable B-Cell Memory Responses Comparable to Replicating Smallpox Vaccines. J Infect Dis. 2023 May 12;227(10):1203-1213. doi: 10.1093/infdis/jiac455.

Reference Type: DERIVED

PMID: 36408618 (View on PubMed)

Other Identifiers

DMID 05-0128

Identifier Type: -

Identifier Source: secondary_id

EudraCT No. 2005-001781-14

Identifier Type: -

Identifier Source: secondary_id

POX-MVA-005

Identifier Type: -

Identifier Source: org_study_id